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Veterinary Public Health and Epidemiology- ICAR JRF/SRF 2024 (Q.76)
MCQ (Single Correct)
+4
−1
BIS standard for "Standard Plate Count” of pasteurized milk is upto:
- Standard Plate Count (SPC) Limit: As per the Bureau of Indian Standards (BIS specifications IS:1479 and IS:13688), the maximum permissible Standard Plate Count (total viable count) for pasteurized liquid milk is $30,000\text{ CFU/ml}$.
- Microbiological Grading of Pasteurized Milk:
- Excellent / Grade A: $\lt 30,000\text{ CFU/ml}$
- Coliform count standard: $\lt 10\text{ CFU/ml}$ (or absent in 0.1 ml) directly after pasteurization and packaging.
- Significance: SPC reflects both raw milk quality and the efficacy of pasteurization ($72^\circ\text{C}$ for 15 s) and post-pasteurization cooling/handling.
Correct option: (3) 30000 cfu/ml
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